Sounds about right, sometimes when i record i do 5 or 6 tracks just for drums.
I can’t seem to play a blast beat on double bass for as long as i want, so i record like 10 seconds of that and just loop it.
Sometimes i will also do multiple vocal tracks just to add depth.
Sometimes i record the room i record in just to add a little ambient, like in a live recording.
Its all about what kind of sound you want!
When i was in audio/visual school, sometimes i would see a fellow audio student working with software that had 40 tracks. I really doubt it was garage band, but some software along those lines.